:root {
  --bg-color-night: #000000;
  --text-color-night: #f0f0f0;
  --light-text-color-night: #a0a0a0;
  --primary-text-night: #ffffff;
  --secondary-text-night: #a0a0a0;

  --bg-color-day: #f9f5ec;      
  --text-color-day: #1a1a1a;
  --light-text-color-day: #5a5a5a;
  --primary-text-day: #111111;
  --secondary-text-day: #666666;

  --accent-night: #00f0ff;      
  --accent-day:   #ff7a00;      
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body.night .title { color: #ffffff !important; }

body, p, h1, h2, .timeline-item, .details, .company, .title-date, .bio-text, .title {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 300;
  color: inherit;
}

html, body { height: 100%; line-height: 1.6; }

/* Theme variables */
body.night {
  background-color: var(--bg-color-night);
  color: var(--light-text-color-night);
  --primary-text: var(--primary-text-night);
  --secondary-text: var(--secondary-text-night);
  --accent-color: var(--accent-night);
}
body.day {
  background-color: var(--bg-color-day);
  color: var(--light-text-color-day);
  --primary-text: var(--primary-text-day);
  --secondary-text: var(--secondary-text-day);
  --accent-color: var(--accent-day);
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent-color); }

/* Navbar */
header { padding: 1rem 2rem; position: sticky; top: 0; z-index: 100; background-color: inherit; }
.navbar { max-width: 1000px; margin: 0 auto; display: flex; justify-content: center; align-items: center; gap: 1.5rem; }
.nav-links { list-style: none; display: flex; gap: 2rem; }

/* Theme toggle button — opposite of current mode */
.theme-btn {
  margin-left: 2rem;
  padding: 0.3rem 0.7rem;
  font-size: 1rem;
  border-radius: 20px;
  border: 1px solid currentColor;
  cursor: pointer;
  transition: all 0.25s ease;
}
body.night .theme-btn {
  background-color: #ffffff;
  color: #000000;
}
body.night .theme-btn:hover {
  background-color: var(--accent-color);
  color: #000000;
}
body.day .theme-btn {
  background-color: #000000;
  color: #ffffff;
}
body.day .theme-btn:hover {
  background-color: var(--accent-color);
  color: #ffffff;
}

/* Fade-in */
.fade-in, .fade-in-name { opacity: 0; transition: opacity 0.6s ease; }
.fade-in.loaded, .fade-in-name.loaded { opacity: 1; }
.navbar-container { opacity: 0; transition: opacity 1.2s ease; }
.navbar-container.loaded { opacity: 1; }

/* Layout */
main { max-width: 700px; margin: 0 auto; padding: 2rem; }
section { margin-bottom: 2rem; }

/* Regular line divider */
.section-divider { border: none; border-top: 2px solid #222; width: 100%; height: 0; }
.section-divider-wrapper { margin: 2rem 0; }

/* Bio */
.bio-section { display: flex; align-items: flex-start; gap: 1.5rem; margin-bottom: 2.5rem; }
.bio-text h1 {
  font-size: 48px; line-height: 48px; font-weight: 300; color: var(--primary-text);
  margin-bottom: 0.5rem; letter-spacing: 0.01em;
}
.title { font-size: 1.1rem; font-weight: 300; color: var(--primary-text); margin-bottom: 1rem; }
.bio-text p { margin-bottom: 0.5rem; max-width: 90%; color: var(--secondary-text); }
.profile-photo { width: 350px; height: 200px; border-radius: 8px; overflow: hidden; position: relative; }
.profile-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Experience & Education */
.experience-section h2, .education-section h2 {
  font-size: 1.4rem; font-weight: 300; margin-bottom: 1rem; color: var(--primary-text);
}
.timeline-item { display: flex; align-items: flex-start; gap: 0.8rem; padding: 0.5rem 0; }
.logo { width: 40px; height: 40px; border-radius: 50%; overflow: hidden; flex-shrink: 0; }
.logo img { width: 100%; height: 100%; object-fit: cover; }
.details { flex-grow: 1; display: flex; flex-direction: column; }
.company { font-size: 1rem; color: var(--primary-text); margin-bottom: 0.1rem; }

/* Role + single dotted leader + date */
.title-date { display: flex; align-items: baseline; font-size: 0.85rem; color: var(--secondary-text); }
.title-date .role { display: flex; align-items: center; flex: 1; min-width: 0; }
.title-date .role::after { content: ""; flex: 1; border-bottom: 1px dotted currentColor; margin-left: 0.4rem; margin-right: 0.5rem; }
.title-date .date { white-space: nowrap; }

/* Chevron divider */
.rule { display: flex; align-items: center; gap: .8rem; margin: 2rem 0 1.2rem; }
.rule .line { flex: 1; height: 2px; background: linear-gradient(90deg, transparent, #2a2a2a 20%, #2a2a2a 80%, transparent); }
.rule .center {
  display: inline-flex; align-items: center; gap: .6rem;
  color: var(--accent-color);
  text-shadow: 0 0 10px color-mix(in oklab, var(--accent-color) 50%, transparent);
}
.rule .chev { display: inline-block; letter-spacing: 1px; }
.rule .chev.left  { animation: nudge-left 2.2s ease-in-out infinite; }
.rule .chev.right { animation: nudge-right 2.2s ease-in-out infinite; }
.rule .star { opacity: .95; }
@keyframes nudge-left  { 0%,100%{transform:translateX(0);opacity:.8} 50%{transform:translateX(-2px);opacity:1} }
@keyframes nudge-right { 0%,100%{transform:translateX(0);opacity:.8} 50%{transform:translateX( 2px);opacity:1} }

/* ASCII wave */
.ascii-wave {
  display: grid; place-items: center; padding: .4rem 0 .2rem; border-radius: 8px;
  background: radial-gradient(800px 200px at 50% 0%, color-mix(in oklab, var(--accent-color) 18%, transparent), transparent 60%);
}
#wave {
  width: 100%; min-height: 96px; white-space: pre; user-select: none;
  letter-spacing: 0.35px; line-height: 1.1; font-size: clamp(9px, 1.2vw, 14px);
  color: var(--accent-color);
  text-shadow: 0 0 10px color-mix(in oklab, var(--accent-color) 40%, transparent);
}

/* Small spinner row */
.spinner-row { display: grid; place-items: center; margin: .4rem 0 1.2rem; }
.spinner { font-family: 'IBM Plex Mono', monospace; font-size: 0.95rem; color: var(--secondary-text); }

/* Footer */
.site-footer { margin-top: 1.2rem; padding: 1.6rem 1rem 2.2rem; display: grid; place-items: center; }
.footer-nav { width: 100%; display: grid; place-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; list-style: none; align-items: center; justify-content: center; color: var(--secondary-text); }
.footer-links a { transition: color 0.2s ease; }
.footer-links a:hover { color: var(--accent-color); }
.footer-links .sep { opacity: 0.4; }

/* Motion helpers */
@keyframes floaty { 0%, 100% { transform: translateY(0); opacity: 0.7; } 50% { transform: translateY(-4px); opacity: 1; } }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fade-in, .fade-in-name, .navbar-container { transition: none; }
  .rule .chev { animation: none; }
}

/* Responsive */
@media (max-width: 600px) {
  .bio-section { flex-direction: column; align-items: center; text-align: center; }
  .profile-photo { margin-bottom: 1rem; width: 100%; height: auto; }
  .bio-text p { max-width: 100%; }
  .timeline-item { gap: 0.5rem; }
  .title-date .role::after { display: none; } /* small screens: drop leader */
  .navbar { flex-wrap: wrap; justify-content: center; gap: 0.75rem; }
  .nav-links { gap: 1rem; font-size: 0.9rem; flex-wrap: wrap; justify-content: center; }
  .theme-btn { margin-left: 0; padding: 0.25rem 0.6rem; font-size: 0.9rem; order: 2; }
}